Abstract

This article describes the general operation principles of devices for synthesized holographic images such as holographic printers. Special emphasis is placed on the printing speed. In addition, various methods to increase the printing process are described and compared.

Note that, the total exposure time has not changed. However, the time required to record one hogel will depend on the number of simultaneous recorded hogels and will be equal to τM2=d2SPεM2. Therefore, the required waiting time must be increased because of the increased single hogel exposure time. It is impossible to define the changes in the waiting time because it depends on the real exposure time, wavelength, and rigidity of the entire system. As such, in the future, we will not take into account the waiting time changes, which is true for very short exposure times as well as a low M.

Eqs. (15), (17), and (19) are true for the case for the field of view of a synthesized holographic image recorded using the single hogel printing technique and is equal to the field of view of the image recoded using the spatial hogel spectra splitting technology if and only if both designs used the same SLM.

The maximum permissible value of the numerical aperture for the Fourier transforming system containing a large linear field was 0.76.

For simplicity, a SLM with a pixel number equal to N and an aspect ratio of 1:1 is used.

In the above calculations, the exposure time (τ), moving time (tmove), waiting time (twait), and time for scheme shift (tshift) are 0, 10, 50, and 5 ms, respectively. The maximum numerical aperture of the Fourier transforming optical system was set to 0.76.

Note that, the total exposure time has not changed. However, the time required to record one hogel will depend on the number of simultaneous recorded hogels and will be equal to τM2=d2SPεM2. Therefore, the required waiting time must be increased because of the increased single hogel exposure time. It is impossible to define the changes in the waiting time because it depends on the real exposure time, wavelength, and rigidity of the entire system. As such, in the future, we will not take into account the waiting time changes, which is true for very short exposure times as well as a low M.

Eqs. (15), (17), and (19) are true for the case for the field of view of a synthesized holographic image recorded using the single hogel printing technique and is equal to the field of view of the image recoded using the spatial hogel spectra splitting technology if and only if both designs used the same SLM.

The maximum permissible value of the numerical aperture for the Fourier transforming system containing a large linear field was 0.76.

For simplicity, a SLM with a pixel number equal to N and an aspect ratio of 1:1 is used.

In the above calculations, the exposure time (τ), moving time (tmove), waiting time (twait), and time for scheme shift (tshift) are 0, 10, 50, and 5 ms, respectively. The maximum numerical aperture of the Fourier transforming optical system was set to 0.76.